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4 years ago

Urgent!!! PLEASE HELP, FAST!!!

1 answer:

6 0

The best way to solve this is to put it into a proportion:
$\frac{x}{84} = \frac{ \frac{1}{4} }{ \frac{3}{4} }$
So you cross multiply to get:
$21= \frac{3}{4} x$ (the 21 is from $\frac{1}{4}$ •84)
Then multiply by $\frac{4}{3}$
And you get $28, so the reduced price would be $28.

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Please help!!!:( image is above ^

r-ruslan [8.4K]

We need to first find the diagonal that moves along the base.

a²+b²=c²

12²+8²=c²

c²=208

c=√208

Now we have find the length for the answer.

(√208)²+14²=c²

c²=208+196

c²=404

c= 20.10 cm approx.

answer: C

3 0

3 years ago

Read 2 more answers

Find an equation of the parabola with vertex (2, -1) and directrix y=-7.

Brums [2.3K]

Answer:

the answer to this is y=7x-15

7 0

3 years ago

Kende bought 3 books that were all the same price he paid a total of $40.20. Write an equation that represents the above situati

oksian1 [2.3K]

Answer:

idk

Step-by-step explanation:

idk

4 0

4 years ago

HELP PLEASE 100 POINTS PLUS BRAINLIEST, (I had the answers already but some reason they got deleted

Bas_tet [7]

Answer:

$\mathrm{11.\:}\frac{176}{5}\pi\:\mathrm{ft^2},\\\\\mathrm{12.\:}\frac{1573}{18}\pi\:\mathrm{mi^2},\\\\\mathrm{13.\:}\frac{269.08}{24}\pi\:\mathrm{km^2}\\\\\mathrm{14.\:}\frac{252.05}{6}\pi\:\mathrm{cm^2}\\\\\mathrm{15.\:}\frac{870.75}{72}\pi\:\mathrm{yd^2}\\\\\mathrm{16.\:}\frac{5953.48}{36}\pi\:\mathrm{m^2}$

Step-by-step explanation:

The area of a sector can be given as:

$\frac{c^{\circ}}{360^{\circ}}\cdot r^2\pi$ , where $c$ is the angle of the sector in degrees.

Problem 11:

$\frac{88^{\circ}}{360^{\circ}}\cdot 12^2\pi=\fbox{$\frac{176}{5}\pi\:\mathrm{ft^2}$}$

Problem 12:

$\frac{260^{\circ}}{360^{\circ}}\cdot 11^2\pi=\fbox{$\frac{1573}{18}\pi\:\mathrm{mi^2}$}$

Problem 13:

Convert radians to degrees:

$\frac{7\pi}{12}\cdot\frac{180}{\pi}=105^{\circ}$

$\frac{105^{\circ}}{360^{\circ}}\cdot 6.2^2\pi=\fbox{$\frac{269.08}{24}\pi\:\mathrm{km^2}$}$

Problem 14:

Convert radians to degrees:

$\frac{5\pi}{3}\cdot \frac{180}{\pi}=300^{\circ}$

$\frac{300^{\circ}}{360^{\circ}}\cdot 7.1^2\pi=\fbox{$\frac{252.05}{6}\pi\:\mathrm{cm^2}$}$

Problem 15:

$\frac{215^{\circ}}{360^{\circ}}\cdot 4.5^2\pi=\fbox{$\frac{870.75}{72}\pi\:\mathrm{yd^2}$}$

Problem 16:

Convert radians to degrees:

$\frac{13\pi}{18}\cdot\frac{180}{\pi}=130^{\circ}$

$\frac{130^{\circ}}{360^{\circ}}\cdot 21.4^2\pi=\fbox{$\frac{5953.48}{36}\pi\:\mathrm{m^2}$}$

3 0

3 years ago

Ratios that are equivalent to 8 : 20

Sidana [21]

Answer: 16 and 40. 24 60

Step-by-step explanation:

6 0

4 years ago